curl --request POST \
  --url https://api.perpo.trade/v1/sub_account_settle_pnl \
  --header 'Content-Type: application/json' \
  --header 'orderly_account_id: <orderly_account_id>' \
  --header 'perpo-key: <perpo-key>' \
  --header 'perpo-signature: <perpo-signature>' \
  --header 'perpo-timestamp: <perpo-timestamp>' \
  --data '
{
  "settle_nonce": 123
}
'

{
  "success": true,
  "data": {
    "settle_pnl_id": 1
  },
  "timestamp": 1702989203989
}